Yarn spool or bobbin.



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. T. 'SAMPSOIL YARN SPOUL 0R BOBBIN.

Application filed May 18, 1899.)

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longitudinal holes or spaces madein the body.

UNITED f STATES THOMAS SAMPSON, 0F

YARN sPooL PATENT FFICE.

1WATlilRiILlllIll, MAINE.

ORBOBBN.

SPECIFICATION forming part ofV Letters Patent No. 634,738, dated October-1Q, 1899.

Application iiled May 18| 1899. Serial No. 717,253. (No model.) y

To all wwntt may concern/: e v

y Be it known that I, THOMAS SAMPsoN, of` Waterville, inA the county of AKennebec and State of Maine,have invented an Improves. ment in Yarn Spools or Bobbins, of which the following description, in'connection with the accompanyingfdrawin gs, is a specification, like letters on lthe drawings representing like parts. t

' This invention has for its object the production of a novel yarn spool or bobbin, These bobbins or spools, as they are sometimes called, consist of bodies having projecting journals and 'heads attached to said bodies, said heads being commonly made of a plurality 'of thicknesses of material to lessen their liability to break by careless handling. These heads have been attached to the bodies in numerous Ways.

My invention consists, essentially, in novel means by which to attach the head to the body.

In accordance with my invention I extend through aslot in the body an elongated locking member or bar having two tapped holes, and into these holes, at the opposite ends of the bar, I insert the threaded ends of two headed retaining-bolts, extended first through a cap applied to the fac'eof the head and then through holes in the head and along through Figure l in section shows au end of a bob-v bin or spool with my improvements added; and Fig. 2 is a section taken in the dotted line :I: fc, Fig. l.

The body A ot the spool and the head B, shown as composed of two thicknesses of material, are and may be as usual. I bore the body at u, substantially diametrically Aand slot the same to present a quad rangular slot, in which I place a locking member, shown as a bar a', provided near each end With a tapped hole to receive the threaded ends c of two screws or bolts C. Outside the head-Iplace a cap D, preferably of metal and preferably off'concavo-convex shape in cross-section, lyet the particular shape ofthe cap is not material. The screws are inserted through suitable holes in the cap, then through suitable holes b in the head of the spool, and then along in longitudinal grooves or spaces as in duced part d4 of the body and is forced against -a shoulder a5 of the body. The bolts occupy a diagonal position relative to the longitudinal axis' of the body, which enables the heads of the bolts to act on the head B at a greater distance from the center of rotation of the body, and yet permits the threaded ends of the bolts to occupy a position wholly within the periphery of the body.

By the term screw as mentioned in the claims I mean to include any equivalent bolt or device. h

Having ldescribed my invention', what I claim, and desire to secure by Letters Patent, 1s

1. In a spool or bobbiu, a body having a transverse opening, a double nut located in said opening and adapted at its ends to be engaged by screws, and a head applied toA said body, combined with two bolts extended through said head and body in a diagonal line, and in engagement with said nur, the inner ends of the screws being located Within the periphery of the body and the heads Without said periphery.

2. In a spool or bobbin, a body having two diametrically opposite longitudinal grooves, a device carried -by the body diametrically thereof, and its opposite ends projecting into the' inner ends of the grooves and being threaded, a head fitted upon the outer end of the body and provided with two openings, headed securing devices passing through said openings and in threaded engagement with said threaded ends, the Shanks of said devices being disposed diagonally in the two grooves, and a cap fitted against the outer end'of the head and held in place by the heads of said headed securing devices.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. y

. THOMAS SAMPSON.

I Witnesses:

JOHN C. EDWARDS, AUGUSTA E. DEAN. 

